Algae in Fuge

[ZBT3091]

Is hair algae/slight diatom algae in my fuge a bad thing? I have very very slight cyano algae in my DT. I have a blue leg hermit that seems to be doing okay and an astrea snail that has an afro of hair algae on his shell. My other fuge in my sump has no algae just slight diatom like in the DT. The chaeto seems to be a little bubbly which is probably O2 and there is algae growing on the chaeto and all over the glass. My nitrates are just about 0 po4 is undetectable on an API phosphate test.

 

[ihatefish]

sounds ok to me man the hair algae might just be from the light on the fuge for so long to me its still exporting the nutrients like u want it too

 

[ecvernon]

phosphate on an api test kit don't work i got undetectable readings until i switched to salifert.
cyano is almost most likely a result of phosphates. exact same thing happened to me